December weather forecast
Green Creek, NJ

Weather in December

The first month of the winter, December, is still a chilly month in Green Creek, New Jersey, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 39.4°F (4.1°C).

Temperature

In Green Creek, the average high-temperature slightly decreases, from a cool 54.5°F (12.5°C) in November, to a frosty 46.8°F (8.2°C). In Green Creek, the average low-temperature is 39.4°F (4.1°C).

Humidity

In Green Creek, the average relative humidity is 75%.

Rainfall

In Green Creek, in December, it is raining for 10.6 days, with typically 3.15" (80mm) of accumulated precipitation. In Green Creek, during the entire year, the rain falls for 158 days and collects up to 35.47" (901mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the month with the most snowfall in Green Creek. Snow falls for 1.3 days and accumulates 1.06" (27mm) of snow.

Daylight

December has the shortest days of the year in Green Creek, New Jersey, with an average of 9.5h of daylight.

Sunshine

In December, the average sunshine in Green Creek is 5.1h.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Green Creek?

The average relative humidity in December is 75%.

How many days does it rain in December in Green Creek?

In Green Creek, in December, it is raining for 10.6 days, with typically 3.15" (80mm) of accumulated precipitation.

What is the snowiest month in Green Creek?

The month with the most snowfall in Green Creek is December when snow falls for 1.3 days and typically aggregates up to 1.06" (27mm) of snow.

When does it start snowing in Green Creek?

December is the first month it typically snows in Green Creek. Throughout December, in the average 1.3 snowfall days, it receives 1.06" (27mm) of snow.

What is the month with the shortest days in Green Creek?

With an average of 9.5h of daylight, December has the shortest days of the year in Green Creek, New Jersey.

What is the average length of the day in December in Green Creek?

In December, the average length of the day in Green Creek, New Jersey, is 9.5h.

How long on average sun shines in December in Green Creek?

In December, the average sunshine in Green Creek, New Jersey, is 5.1h.

What is the month with the lowest UV index in Green Creek?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Green Creek?

In Green Creek, New Jersey, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Green Creek, NJ

Average temperature in December - Green Creek, NJ
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in December: 39.4°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

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Average pressure in December
Green Creek, NJ

Average pressure in December - Green Creek, NJ
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in December
Green Creek, NJ

Average wind speed in December - Green Creek, NJ
  • Average wind speed in December: 13mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).

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Average humidity in December
Green Creek, NJ

Average humidity in December - Green Creek, NJ
  • Average humidity in December: 75%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in December
Green Creek, NJ

Average rainfall in December - Green Creek, NJ
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in December
Green Creek, NJ

Average rainfall days in December - Green Creek, NJ
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in December
Green Creek, NJ

Average snowfall in December - Green Creek, NJ
  • Average snowfall in December: 1.06"

The month with the highest snowfall is December (1.06").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Green Creek, NJ

Average snowfall days in December - Green Creek, NJ
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Green Creek, NJ

Average daylight in December / Average sunshine in December - Green Creek, NJ
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in December
Green Creek, NJ

Average sunshine days in December - Green Creek, NJ
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (18.9 days).
Months with the least sunshine days are May and June (12.5 days).

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Average UV index in December
Green Creek, NJ

Average UV index in December - Green Creek, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in December
Green Creek, NJ

Average cloud cover in December - Green Creek, NJ
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in December
Green Creek, NJ

Average visibility in December - Green Creek, NJ
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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